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WaterBoss Replacement Drive End Cap Assembly 54520 | Free Ship

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All products include FREE standard shipping in the US!

WaterBoss Replacement Drive End Cap Assembly 54520 for AMS 700, 900 or 950. 

✔️ Easy to replace, see video.


PRT 54520

File Downloads

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Customer Reviews

Based on 57 reviews
Kenneth S. (Manly, US)
WaterBoss End Cap assembly

Part was exactly what I was looking for and came with everything needed to make the replacement a breeze. The online video's made the replacement job even easier knowing exactly how and when to do certain tasks. Great Job Water Estore, I'll be back when needing more replacement parts for sure..

HI Kenneth, Thank you for your order and the kind words. We're glad you're happy with the WaterBoss End Cap assembly.
We look forward to helping you again soon.
Take care and stay safe.

Timmothy G. (Sedalia, US)
Great Service

Answered my question about the part I needed, when the new part came and was already broken or broke when I tried to unwrap it, they sent me a replacement right away. The videos are a big help to understand my water softener I inherited when I bought this house they left no instructions for it.

Thank you, Timmothy, for your purchase and taking the time to write this review . We're glad to hear that our customer service was helpful and that you received a replacement part promptly.
We look forward to helping you again soon.
Take care and stay safe.

Sloane L. (Billings, US)
Great company

I love the how to video on this part, very impressed with your company!

Hi Sloane, Thanks for your purchase and the review! We're glad you're happy with our company and the videos with our products.
We look forward to helping you again soon.
Take care and stay safe.

Michael M. (Bullhead City, US)

I’m grateful that you have the parts and you got them to me so quickly. I had fought so long with it I could do it in my sleep but it was good to know you were there for support, you didn’t just ship and disappear. I will definitely come back. Thank you!!!

Thank you, Michael, for your business and kind words! We're glad to be of assistance - and you're welcome!
We look forward to helping you again soon.
Take care and stay safe.

JeriAnn S. (Charlo, US)

I returned item due to purchasing a whole new water boss

Thank you for your business and feedback, JeriAnn!
We look forward to helping you again soon.
Take care and stay safe.

About WaterBoss

WaterBoss is a Canadian company that specializes in providing water treatment solutions for residential, commercial, and industrial applications. The company's mission is to provide high-quality and reliable water treatment systems to its customers.

WaterBoss' mission is to provide high-efficiency certified water appliances at affordable prices while focusing on honesty, integrity, and service to their customers’ satisfaction.*  Based in Calgary, WaterBoss is a trademark of ACi  Distributing Inc. which was incorporated in 1999 and have distributors throughout Canada.   They have numerous industry certifications and an A+ rating with the Better Business Bureau. 

WaterBoss' AMS700, AMS900 and AMS950 are premium high-efficiency water softeners that are renowned for how little water and salt they use during regeneration.

 We offer YouTube videos that support WaterBoss Water Softeners and Drinking Water systems explaining how they work, how to install and service. We vet our suppliers and personally test all WaterBoss products, installing them in our homes and monitoring their performance daily. They have a proven track record of not only building environmentally friendly and affordable products but also providing after-sales support and service. 

Water eStore carries WaterBoss home water appliances that are water softeners and drinking water systems.  They offer a 5/10-year warranty and toll-free client support.  We offer a 100% money-back guarantee if you’re not satisfied with your investment in WaterBoss water filtration products for your family. 

See all from WaterBoss

Shipping Policy

We offer FREE Shipping to all contiguous states in the United States. If you would like to order products for shipment to other areas please email us with your shipping address and what you would like to order and we'll email you a draft order which will include any extra shipping costs. Once your order is placed, we process it the next business day and ship via ground transportation. In very remote locations, whenever the shipping costs become prohibitive we reserve the right to either cancel the order or ask that you contribute to the shipping costs, it's up to you. Your items may take anywhere from a few days up to a few weeks to arrive. If you have any special shipping requirements, like requiring a signature at time of delivery, please leave a message in the "Special instructions for seller" section while checking out. If you order multiple products they may not all arrive at the same time as we ship from multiple warehouses and each item will be shipped directly to you. If no one is home when your order is delivered it will be left for you but we cannot assume responsibility for your order once it has been dropped off. If you have any questions please contact us at

Thank you for your order, we appreciate your business!



Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.


Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds

  • If you haven’t received a refund yet, first check your bank account again.
  • Then contact your credit card company, it may take some time before your refund is officially posted.
  • Next contact your bank. There is often some processing time before a refund is posted.
  • If you’ve done all of this and you still have not received your refund yet, please contact us at

Sale items

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.


We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at and send your item to: The Water Store 1004 King Street Midland Ontario CA L4R0B8.


To return your product, you should mail your product to:

The Water Store
1004 King Street
Midland Ontario CA L4R0B8

You will be responsible for paying for your own shipping, customs and borkerage fees, if applicable, for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

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